uint8 RESULT_SUCCESS = 0
uint8 RESULT_INVALID_ARGS = 1
uint8 RESULT_UNSUPPORTED = 2
uint8 RESULT_TIMEOUT = 3
uint8 RESULT_BUSY = 4
uint8 RESULT_INVALID_STATE = 5
uint8 RESULT_INNER_ERROR = 6
uint8 RESULT_UNDEFINED_ERROR = 255

uint8 result
string msg
CompressedImage[] face_images
